The Worm Shaft, cataloged under National Stock Number 3040-00-629-0362, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Honeywell International Inc. Div Aerospace - Torrance. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-629-0362 |
| Primary Part Number | 40641 |
| Item Name | Worm Shaft |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Shaft Location | BOTH ENDS OF WORM |
| Involute Spline Pitch Diameter | 0.2500 INCHES NOMINAL SECOND END EIGHTH PORTION IN |
| Teeth Hardness Rating | 48.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM |
| Worm Body Length | 0.620 INCHES NOMINAL IN |
| Worm Thread Lead | 0.267 INCHES NOMINAL IN |
| Worm Pitch Diameter | 0.438 INCHES NOMINAL IN |
| Worm Outside Diameter | 0.516 INCHES NOMINAL IN |
| Straight Unthreaded Section Diameter | 0.249 INCHES NOMINAL AND 0.320 INCHES NOMINAL FIRST END FIRST PORTION IN |
| End Similarity | NOT IDENTICAL |
| Shaft Hardness Rating | 28.0 ROCKWELL C MINIMUM AND 34.0 ROCKWELL C MAXIMUM LOCATION NOT OTHERWISE SPECIFIED |
| Involute Spline Length | 0.260 INCHES NOMINAL SECOND END FIRST PORTION IN |
| Minor Diameter | UNABLE TO DECODE |
| Involute Spline Pressure Angle in Deg | 14.5 FIRST END |
| Material | STEEL |
| Worm Thread Quantity | 5 |
| Worm Thread Direction | LEFT-HAND |
| Involute Spline Quantity | 12 FIRST END |
| Worm Pressure Angle in Deg | 20.000 |
| Straight Unthreaded Length | 0.200 INCHES NOMINAL AND 0.660 INCHES NOMINAL FIRST END FIRST PORTION IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 40641 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 40641 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 3040-00-629-0362 is a Worm Shaft, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-629-0362 has 1 manufacturer part number on file: 40641 (Honeywell International Inc. Div Aerospace - Torrance).
5 possible matches (shared part number, not a government interchangeability claim): 3040-01-041-1917, 6680-01-226-8142, 9390-01-470-3614. Verify interchangeability with system specifications before substitution.
Key specifications for 40641: Shaft Location: BOTH ENDS OF WORM; Involute Spline Pitch Diameter: 0.2500 INCHES NOMINAL SECOND END EIGHTH PORTION IN; Teeth Hardness Rating: 48.0 ROCKWELL C MINIMUM AND 55.0 ROCKWELL C MAXIMUM; Worm Body Length: 0.620 INCHES NOMINAL IN. 19 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.